Jahr
2011
2012
17
2013
17
2014
17
2015
17
2016
17
2017
17
2018
17
2019
17
2020
17
2021
17
2022
17
2023
17
2010
16
2024
16
2009
14
2008
11
2007
9
1977
1
1978
1
1979
1
1980
1
1981
1
1982
1
1983
1
1984
1
1985
1
1986
1
1987
1
1988
1
1989
1
1990
1
1991
1
1992
1
1993
1
1994
1
1995
1
1996
1
1997
1
1998
1
1999
1
2000
1
2001
1
2002
1
2003
1
2004
1
2005
1
2006
1